Crank-case-draining device



sept. 29, 1925.v 1,555,326

A. s. MUMMERTv GRANK CASE DRAINING DEVICE Filed Aug. 13. 1923 2 sheets-sheer 1' abforneq Seme 29, i925. 15559326 A. s. MUMMERT' CRANK CASE DHAINING DEVICE Filed Aug. 15. 19215 2 Sheets-Sheet 2 Patented sept. 29.1925.

ANDREW s. MUMMEET, oF YORK, ENNsYLvANIA.

cnANx-cAsE-DEAINING DEVICE.

Application led August 13,' 1923. Serial No. 657,266.

To all 'whom t may concern Be it known that f, ANDREW S. MUMME1:T, a citizen of the United States, residing at York, county of York, State of Pennsyl- 5 vania, have invented certain new and useful Improvements in Crank-Case-Draining Devices', of which the following is a specifica tion.

Thisinvention relates to devices for fal@ cilitating the draining of. crank cases, or the like, of motor vehicles, the primary object ofthe invention being to provide means whereby the drain plug of the crank case may be removed for "draining purposes and l5 replaced after the Y operation, without the necessity of an operator or mechanic reaching or crawling beneath the vehicle, or placing the vehicle over a pit.

A further object of the invention is to provide means whereby the drain plug or tap ofthe crank case may be removed .and the oil in the case collected without danger of losing or spilling the same, and without the necessity of the operator or mechanic becoming besmeared with the oil.

\ applied in proper positionwith respectto the vehicle, -which is simple in operation,- which comprises but few simple parts, all constructed, assembled and operated in such manner as to minimize the opportunity for wear, breakage or derangement, which` may be manufactured at small expense, and

which will provel thoroughly Ypractical and efficient in use.

With these objects in view, together with others which will a pear as the description proceeds, the invention consists in the novel construction, combination and arrangement l -of parts, all as will be described more fully hereinafter, illustrated .in the drawings, and particularly pointed out inthe claims.

Fig'. 4, is a sectional view taken substanl tially upon the line 4-4'of Fig. 2,

Fig. 5 is a similar view taken upon line of Fig. 4,

Fig. 6 is an enlarged sectional view taken through the center post of the carriage',

Fig. 7, is a detail sectional view showing the manner in which the nut engaging sockcts may be applied to the standard, and

Fig. 8 is a sectional view of a slight modification of supporting' bracket'.

The invention consists generally in a carriage adapted to be positioned beneath the motor vehicle and moved into operative relation to the drain'plug in the lower part of the crank case, and this carriage is provided with means for engaging the' drain plug or tap. The tap engaging'melans is operated by a device remote from the same, and in such position that the operator may easily and conveniently manipulate the same to unscrew or remove the tap from a position substantially remote from the crank case. When the tap has been removed, the oil in the case flows therefrom and is caught in a container forming part of the carriage, and no loss or spilling of the oil occurs. After the draining operation, the operator operates the device to replace the plug, whereupon the lapparatus in. its entirety is withdrawn from beneath the vehicle, and the oil in the collector thereof vmay be disposed of. as desired. All of these operations are carried out without the necessity of the mechanicapproaching the under part of the vehicle, l

and without coming in contact with the oil. The preferred means for accomplisliing r the` objects set .forth include a carriage 9, which may be in the form of a comparatively shallow pan as shown, constructed of light metal and of any desired shape or size. In the present instance this pan or container is of circular shape, and is supported by casters 10, so .that the device may be readily moved about. The casters are arranged near the outer4 edges of the pan and prefer- 50 same as applied to a conventional type of i ..55 for the device, and showing the use of a In the drawings: l

Fig. 1 is a side elevation of a crank case draining apparatus constructed in accordance with my invention, and showing the ably ninety degrees apart, and the casters are preferably swivelled 'to allow the carriage to be conveniently moved. i

The carriage is provided preferably at its crank case, v. e center or middle part withv sin upsta'nding Fig. 2 is a plan view of the device shown hollow post 11, within which a .standard 1 2 in Fig. 1; is slidably supported, and this standardV is adapted vto engage or grip the tap or plug -13 of the crank lcase. To facilitate this gripping action, the upper end of the stand Fig. 3 is an end view of the operating rod "51113110112 for the rod,

standard 12, as will be ard may be equipped lwith a socket 14, having a recess 15 of a size and shape to receive the plug, and it will be understood that Sockets of various sizes, to accommodate various sized plugs or taps, may be applied t'o the standard. The socket members may be provided with oprnings extending' entirely therethrough to receive the standard,

and key-ways 16 formed in the walls of the opening receive keys 17 on the sides of the standard. While this is a preferred method of securing the socket members to the standard, it will be understood vthat other means may equally as well be employed.

The standard 12 is adapted to move into and out of engagement with the tap or plug, and is therefore slidable within the post 11. The post has arranged therein an expansion spring 18, upon which the lower end of the standard rests, and the tendency 'of the spring is to force the standard upwardly. The standard is loosely guided through suitable guide openings in a block 19 supported over the post l11, and which, in turn, is supportedl by the legs 20 of a spider secured to the carriage 9.

The standard is lpreferably polygonalin cross section, as shown, and slides through an opening of similar shape in a bevel gear 2l housed within the block 19, and this gear is engaged by the teeth of a bevel pinion 22 housed' by the block 19 and connected to the inner end o'f an operating shaft o'r rod 23. This rod or shaft is relatively long, and is provided at its outer end with a crank or operating handle 24. The outer end of this shaft may be supported by a suitable brace such as indicated at 25, to stabilize the flevice and hold it lirm during operation. This brace in the present instance is formed of a single length of relatively heavy wire, twisted'intermediate its ends to form a handhold 26, then twisted upon itself to form a post and shaft engaging portion 27, with the ends of the wire diverging from'the post down to provide legs, as shown. It will be understood that the operator or mechanic grasps the hand-hold 26 with one hand while he operates the crank with the other.

The means for retracting or lowering the required in the application and withdrawing of the device, may comprise a wire cord or cable 28, secured at its inner end to the lower end of the stand ard 12 and extending" out from the carriage to be in convenient reach of the operator. This cable or cord passes overguide pulleys 29;,one arranged in the lower end of the post 11 and the other supported by the bracket or spider 20, in order that friction may be reduced to a minimum.

In the preferred embodiment of theI invention,'the legs of the bracket or spider 20 are pivotally secured at their upper ends the to the under side of the block 19 byy the bolts 30, so that the same may be folded in small compass for shipping and storage purposes. The lower ends of these legs have feet 31 provided with apertures to receive the bolts or pins 32 that secure the casters to the base of the carriage, so that the same bolts may serve both purposes. v

The pulley 29 in the lower end of the post 11 is carried "by a U-bracket, as shown, through which the bolt 33 extends; this bolt serving the purpose of securing the post and pulley bracket in proper position. The lower end'of the standard 12 may be equipped with a bracket 34, pinned in position as shown, toform a connector forthe inner end of the cable 28. f

In the modification shown in Fig. 8 of the drawings, the spider or bracket is cast in one piece, and combines with it the block or support for the intermeshing gears and the guide for the standard. The feet 31, in this instance, will be formed with oneopening to receive the .caster post 35 of the caster 10. It will be understood, however, that in -this modication casters of the type illustrated in the preferred form of the invention may be equally as effectively used, as the feet of the bracket legs may be provided with one or more openings. i i In operation, the carriage with its parts assembled in lthe manner described, is moved beneath the crank caseto be operated upon; `the lcord 28 having been first pulledto lower the standard 12. directly beneath the tap or plug of the crank case, the cord is released,l whereupon the spring 18 moves the standard upwardly so that the socket on the upper end thereofwill embrace the angular plug. When the socket and plug are thus coupled the shaft 23 is rotated in such direction as to cause the plug to be unscrewed. When the plug is loose from the crank opening, the carriage may be moved slightly so that the oil in the case may drain directly in the container without striking the bracket or other parts of the carriage. When the oil has all passed from the case, the carriage will be moved back in position to have the plug inserted in its opening, whereupon the cord or cable is released. Rotation of the shaft in the reverse direction will cause the plug to be screwed in place. The cord is then retracted to lower the standard, and the carriage with the waste oil may be withdrawn from beneath the vehicle. In instances where different sizes or types of case plugs are used, it will be understood that the mechanic will apply to the standard such socket as will be required for use in such connection. L

From the foregoing it will be apparent that I have provided a device for removing When the standard is?` The means herein shown for the accom* plishment of the ends-set forth is only one way of carrying forth the inventive idea, as I am aware that the same result may be obtained by mechanical devices other than those shown and described herein, and I ref serve to myself the right to depart from the specific structure illustrated and set forth above without departing from thespirit of the invention as defined by the claims.

Having thus described my invention, I claim:

l. In a crank case draining device, a carriage comprising a container, a plug operating standard mounted above said container and adapted to engage with a drain plug, means remote from the carrier for rotating said standard, and means for elevating said standard. i

2. In a device of the class described, a pan, rollers supporting said pan, a hollow post rising from said pan, a standard slidably arranged in said post, a spring in said post tending to move said standard in one direction, a gear having a central opening r arranged above said post and receiving said standard and being operatively connected therewith, a pinion enmeshed with said gear,

a shaft for rotating said'pinion, a socket carried by said standard, and a cable secured to said standard and adapted to move the same against the tension of said spring.

3. In a device of the class described, a carriage comprising/fa pan, a plurality of casters supporting said pan, bolts passing through said pan and securing said casters thereto, a bracket insaid pan, feet on said bracket overlying said casters, the bolts of the casters passing through said feet, and plug operating mechanism carried by said bracket.

4. In a crank case draining device, a pan, a bracket supported directly above said pan and carried by the latter, gearing in -said bracket, a post rising from said pan beneath said gearing, a standard slidably associated with said post and operatively connected with said gearing, a plug operating device carried by the upper end of said standard, vmeans for operating said gearing, and means for lowering said standard,

5. In a crank case draining device, a pan, rollers supporting said pan, a bracket carried by and supported directly above said pan, gearing in said bracket, a post rising from said pan beneath said gearing, a standard slidably associated with said gearing, a

plug operating device carried by said standard, means for operating said gearing, means for retracting said standard, and a spring normally holding said standard eX- tended.

In testimony whereof I aix my signature.

ANDREW S. MUMMERT. 

